Thi, I think the ship is based on their personality. Look at wolf for example, a common view people have on him is that he's obedient and doesn't talk much. Neither does he really question orders.

he was basically raised all his life as a weapon and a servant. To obey orders and listen to other people. A more submissive role. He rarely has his own opinions on things and his whole motive in life is his royalty to someone else and not a personal goal.

Now take Genichiro on the other hard. He's almost a fucking prince, rised with pride and a lot of expectations. Everyone respects and fears him which filled his ego. Pretty intimidating and borderline scary.Basically a dom role.

And yes i know being dom doesn't mean you have to top. Same thing for sub.

But it fucking helps desu.

Think about it this way. Genichiro KNOWS wolf is stronger than him. And it drives him fucking nuts That -a kid who was raised in shitty environment with a father who barely took care of him- would simply surpass him.

Plus Genichiro is stronger physically speaking. Taller and larger. he is everything more than wolf and yet wolf managed to best him a lot of times.

Think about the rage, hatred and envy. Self loathing disguised as anger. When someone like this beats you.

Ofc humiliating him and taking revenge would be the priority on your list. And what better way to humiliate someone than sexually. To order wolf to shut the fuck up and just take him since he is still his lord after all. (1/2)

Plus since he is immortal, the other doesn't have to hold back and will fuck him to death over and over if it means he will get to see wolf suffer and beg. something probably won't ever happen in combat.

Now this means that wolf allows this to happen. that he also knows he can take Genichiro if he wanted to so why would he put up with this.

Easy. Trauma equals fucked up sexual desires. His father never gave him enough attention. everyone looks down on him and having to kneel to people higher than him was beaten into him.

And the fact with being immortal and dying a lot. Some sort of thoughts, scary thoughts and feelings would sweep to your head. And what better way to let them out than sexually. Pain and pleasure wired together and twisting on themselves. Just the need to feel anything intensly. Which makes love and hate basically the same thing.

Genichiro won't hold back, and wolf wants to be treated like shit to be able to feel something. It's a win win situation

Plus physically difference. Genichiro towers over wolf. Hands can go around his waist and squeeze him like he was some petite thing. Dick bigger than wolf's wrist.

For a big strong man like wolf, being manhandled easily like some virgin maiden and pinned down then stuffed sure would do something to him. (2/2)